Cost of upgrading six miles of A9 near Inverness rises to £308m

The total cost of upgrading a six mile (10km) section of the A9 in the Highlands is now expected to run to £308m - £111m more than originally estimated, according to a Scottish government report.

The Tomatin to Moy stretch, south of Inverness, is one of six projects to upgrade of the trunk road from Inverness to Perth to dual carriageway by the end of 2035.

The report on major infrastructure projects said an initial estimated total cost of £197m later rose to £254m and then in July this year to £308m.

SNP Inverness and Nairn MSP Fergus Ewing said a "full explanation" was needed of why the total cost was not mentioned in a recent Scottish government announcement. Transport Scotland has been approached for comment.

Two sections of single carriageway totalling 11 miles (18km) of road have been upgraded over the past decade under the £3bn dualling project.

But 77 miles (124km) of the route has still to be dualled.

When completed, the new Tomatin to Moy section would provide about 20 miles (33km) of continuous dual carriageway between Inverness and Slochd.

The project has been hit by delays, including earlier this month when it was revealed the section was expected to be operational in 2028 and not late 2027 as hoped.

Last year, the construction contract was re-tendered after only one company bid for the work.

In July , the Scottish government agency awarded the contract worth almost £185m to Balfour Beatty Civil Engineering Ltd.

The new report said inflation and costs around a change in contract procurement had led to the increased estimated total cost of £308m.

Mr Ewing said the Scottish government "needed to be candid" with the public on costs.

He told BBC Scotland News: "A full explanation is needed to say why the whole costs were not mentioned in the recent press release.

"The total cost will, I expect, include all preparatory work in route selection, and design, obtaining the necessary legal orders."

Mr Ewing added: "But until such time as the total business case figures are broken down into components and made public, we remain in the dark."